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Aftermarket replacement carbon vane set for Becker DT 4.3, DT 4.4, VT 4.3, VT 4.4 dry running (oil free) rotary vane pumps and compressors. It replaces Becker part number 90138700005 (WN 124-219): a set of 5 graphite carbon vanes, each 32 x 16 x 3 mm (length x height x thickness).
In a dry running Becker pump the carbon vanes are the main wear part. They slide in the rotor slots, are thrown out against the cylinder wall and wear a little on every turn. As they shorten the pump loses vacuum and flow, runs hotter and gets noisier, and a vane worn too far can break and damage the cylinder. Becker sets a minimum vane height in each pump's manual; change the full set before the vanes reach it.
Always change all 5 vanes together so the rotor stays balanced, and clean the carbon dust out of the pump and filters while it is open. The vanes are made from self lubricating graphite carbon to the Becker size and come as a complete set for one pump.
| Part Type | Carbon vane set (rotary vanes) |
| Replaces | Becker 90138700005 (WN 124-219) |
| Vanes in Set | 5 |
| Vane Size (L x H x T) | 32 x 16 x 3 mm |
| Material | Self lubricating graphite carbon |
| Fits | Becker DT 4.3, DT 4.4, VT 4.3, VT 4.4 |
| Pump Type | Dry running rotary vane vacuum pump / compressor |
| Stat. HS-Code | 841490 |
Becker pumps
Check the pump model plate and measure an old vane: 32 x 16 x 3 mm.
| Pack | Dimensions | Becker Part No.(SPM Part No.) | Fits |
|---|---|---|---|
| Set of 5 | 32 x 16 x 3 mm | 90138700005 / WN 124-219(SPM-VAN-2208) | Becker DT 4.3, Becker DT 4.4, Becker VT 4.3, Becker VT 4.4 |
Planned vane changes
Measure the vane height at every service and change the set before it reaches Becker's minimum for your pump. Keeping a spare set means the change happens at the service, not after a breakdown.
Falling vacuum or flow
If the pump takes longer to pull down, holds a weaker vacuum or a vacuum table starts letting parts slip, worn vanes are the usual cause once the filters are clean.
Noisy or hot running
Short or chipped vanes chatter in the slots and the pump runs hotter. Stop and check the vanes before one breaks.
Typical machines
Becker dry running vane pumps run CNC router vacuum tables, printing and paper handling machines, packaging and pick and place equipment, woodworking clamps and pneumatic conveying.
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No. It is an aftermarket set made to the size of the Becker 90138700005 vanes. It is not made by or affiliated with Becker; the Becker numbers are used only to show what it replaces.
Yes if your pump is a Becker DT 4.3, DT 4.4, VT 4.3, VT 4.4 and the old vanes measure 32 x 16 x 3 mm. Check the model plate on the pump and measure an old vane before ordering.
The DT 4.3, DT 4.4, VT 4.3, VT 4.4 rotor has 5 slots. Change every vane at the same time; mixing new and worn vanes unbalances the rotor and wears the new vanes fast.
When the vanes are worn down to the minimum height in your pump's manual, or sooner if a vane is chipped or cracked. Measure them at every filter service.
Clean the carbon dust from the pump housing, rotor slots and filters, and change the inlet and outlet filters if they are loaded. Fit the vanes the same way round as the old ones, with the bevelled edge against the cylinder wall.
Yes, we ship worldwide. Shipping is calculated at checkout, and every order is covered by our 30 day money back guarantee and price beat guarantee.
